{"id":1688,"date":"2022-03-17T09:48:04","date_gmt":"2022-03-17T09:48:04","guid":{"rendered":"https:\/\/www.fibermall.com\/blog\/?p=1688"},"modified":"2022-12-16T02:14:40","modified_gmt":"2022-12-16T02:14:40","slug":"broadcom-100g-pam4-dsp-helps-the-application-of-400g-module","status":"publish","type":"post","link":"https:\/\/www.fibermall.com\/news\/broadcom-100g-pam4-dsp-for-400g-module.htm","title":{"rendered":"Broadcom 100G PAM4 DSP helps the application of 400G module"},"content":{"rendered":"

At the recent OFC 2022 Exhibition, Broadcom demonstrated its 100G per channel optical PAM4 DSP (Digital Signal Processor) physical layer chip BCM87412, which is developed based on a 7nm CMOS process and integrates a trans-impedance amplifier (TIA) and high swing laser driver (Driver), and is optimized for 400G DR4\/FR4 module application. The BCM87412 also features leading FEC function options in the industry, providing the market with an unparalleled competitive advantage.<\/span><\/p>\n

\"Broadcom<\/p>\n

Broadcom DSP\uff1a BCM87412<\/span><\/strong><\/p>\n

Based on Broadcom’s well-recognized 112G PAM4 DSP platform, this highly integrated DSP PHY provides the highest level of CMOS integration for powerful performance at lower power consumption, enabling sub-7W 400G DR4\/FR4 modules to drive the industry toward a greener 400G Ethernet development.<\/span><\/p>\n

Compared with the mainstream power consumption level of 9W in the industry, the reduction of module power consumption brought by this chip is a significant breakthrough. It can provide the lowest pJ\/bit for DR4\/FR4 modules and reduce the power consumption of the overall system to an unprecedented level for ultra-large-scale data centers and cloud providers.<\/span><\/p>\n

At OFC 2022 exhibition, Broadcom demonstrated the interoperability of its FiberMall 400G DR4<\/a> <\/span>module with its BCM87412 (100G per channel optical PAM4 DSP) and other Broadcom Tomahawk-based modules.<\/span><\/p>\n

Vijay Janapaty, vice president and general manager of Broadcom’s Physical Layer Products Division, said: \u201cBroadcom continues to innovate and drive the development of next-generation PAM4 DSP integration. The launch of the BCM87412 satisfies our unremitting pursuit of lower power consumption and makes the industry’s most advanced 100 G-based (single-channel) modules a reality. “<\/span><\/p>\n

In 400GbE mode, the BCM87412 converts eight lanes of 53 Gb\/s (26-Gbaud PAM-4) to four lanes of 106 Gb\/s (53-Gbaud PAM-4) from the system side, to directly drive next-generation high-density optical PAM-4 QSFP-DD<\/a><\/span> and OSFP modules. The BCM87412 is compliant with current industry standards, including 400GBASE-DR4 and 100G-MSA scheme 1.0 with KP4 FEC and FEC bypass mode.<\/span><\/p>\n

\"400G<\/p>\n

400G PAM4 Optical Transceiver Block Diagram<\/span><\/strong><\/p>\n

During OFC 2022, Broadcom demonstrated the interoperability of the DR4 optical transceiver with the latest DSP BCM87412 and multi-vendor DR4 module at its booth (#5801). At the same time, Broadcom also showcased a series of state-of-the-art data center solutions, including third-party single-mode fiber converters (2X400G FR4 and 800G DR8) and third-party multi-mode converters (400G SR4 and 800G SR8) based on Broadcom’s DSP solutions. The following optical module manufacturers participated in this multi-vendor interoperability demonstration based on the latest 100G\/channel switching platform: FiberMall, II-VI, Lumentum, Sumitomo, AOI, and Intel.<\/span><\/p>\n